Attachment for heating coils and systems of pipes



(No Model.)

W. M. BROWN.

ATTAQHM'ENT FOR HEATING 001m AND SYSTEMS 0P PIPES.

WITNESSES:

INVENTOR'.

UNITED STATES ATENT Trice.

WALTER M. BROWN, OF ALBANY, NEW YORK.

ATTACHMENT FOR HEATING COILS AND SYSTEMS OF PIPES.

SPECIFICATION forming part of Letters Patent No. 372.298, dated November 1, 1887.

Application filed March 2'2, 1887. Serial No. 231.995. (N model.)

To all whom it mag concern:

Be it known that I, WALTER M. BROWN, a citizen of the United States,residingatAlbany, in the county of Albany and State of New 5 York, have invented new and useful Improvements in Attachments for Heating Coils and Systems of Pipes by the Use of Gas or Infiammable Vapor as a Fuel; and I do hereby declare that the following is a full, clear, and

exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

The object of my invention is to cause the flame and products of combustion of burning gas or vapor to wholly or partly surround the pipes ofa heating coil or system of heatingpipes, and to retain the products of combustion about the said'pipes for the longest practical space of time. I attain this object by means of the apparatus illustrated in the accompanying drawings, in which- Figure l is a side elevation of a system of heating-pipes,showing the gas-pipeand'a hood or bonnet in position; Fig. 2, a transverse section of same on line X X, drawn through Fig. 1; Fig. 3, an enlarged cross-section of a pipe of a heating-coil or system of heatingpipes, showing the manner of fastening the hood or bonnet in position to said pipe; Fig.

c 4, an enlarged view of the hood, showing the openings in it for the escape of the products of combustion; Fig. 5, a strap with which to secure hood or bonnet to pipes.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I make the following detailed description of my invention.

A represents a system of heating-pipes,commonly called a flat coil; B, a system of 40 gas-pipe to convey gas or inflammable vapor thereto, having adjunct burners b or perforations 1), whereat to burn the gas or vapor; O, a hood or bonnet with which to cover so much of the said pipe A as may seem desirable; c,

openings in said hood or bonnet whereat the products of combustion may escape; D, a metal rest or block having one or more openings through it, upon which the bonnet C may rest; d, a strap of any suitable metal,by means of which the hood or bonnet C may be fastened more or less firmly to the pipe A, said strap, having ears 0', and said ears 0 having one or more holes or openings, 0 in which the threaded bolt 0 or a rivet may be placed; 0, a nut to fit the threaded bolt; E, a rivet by which the hood or bonnet O, the rest or block D, and the strap (2 may be fastened together; F, asbestus lining fastened to the under surface of the bonnet.

I preferably construct the hood or bonnet C of sheet-iron,and line it with asbestus or other non-conducting substance, as shown at F; but it may be lined upon its under side or covered upon its upper surface, as may be desired; but the bonnet may be made of any refractory substance that may be deemed desirable. In

putting may invention into practical use I preferably form the hood or bonnet O in such manner and of such dimensions that it will cover the pipes of the heating-coil substantially as shown in Fig. 3, and line it upon its under surface or cover its upper surface with any suitable non-conducting substance, and make any number of openings or perforations c inthe hood or bonnet 0 sufficient to allow the products of combustion to escape after they have passed upward and about the 'surface of the pipes A and under the bonnet G.

I place the block or rest D against the under surface of the crown of the bonnet O, and the crown of the strap d against the under surface of the block or rest D, I preferably make use of a rivet and pass it through the hood or bonnet G, the block or rest D, and the crown of the strap d,-and rivet them firmly together; but any fastening device may be used in place of the rivet. Thebonnet G, the block or rest D, and the strap (I being firmly riveted or otherwise fastened together, I bend the strap (1 about the pipe A,and through the openings in the ears 0 of the strap (1, I pass a threaded bolt, and by turning a nut upon the threaded bolt bring the ears 0 of the strap (1 together, which causes the strap d to tightly clasp the pipe A and hold the hood or bonnet Olin position. In fastening the ears 0 on the strap d together, a rivet or other well-known fastening device may be used; but I preferably use a threaded bolt and nut, as its use facilitates the setting or removing of the hood or bonnet.

The operation of myinvention is as follows: When the gas or vapor is ignited at the burners or perforations of the gas-pipe B, the flame of the burning gas or vapor and the other products of combustion impinge upon the under surface of the pipes A and pass upward under the hood or bonnet (J and out of the perforations or openings 0 in the hood G, thus causing the products of combustion to be held in contact with the entire surface of the pipes A, whereas without the hood or bonnet the products of combustion would but partly encircle the pipe and pass off without heating the pipes A,except upon their under surface, and thus much of the heating-power of the gas or vapor would be wasted.

Having fully described my invention, what I claim, and desire to seen rc by Letters Patent, 1s-

1. A perforated arched hood, 0, in combination with a coil or system of heating-pipes arranged below it and a gas-pipe and burners discharging below said hood for heating the former coil, substantially as set forth.

2. The combination of a heating'coil or system of heating-pipes, with a hood arranged above it, a block or rest between said coil and said hood, a strap and fastenings for securing said hood and coil together, and burners discharging under said hood, the latter being perforated to allow the escapeof the products of combustion, substantially as set forth.

3. The combination of coil A with burners discharging under the same and a hood, 0, arching above the same, said hood being protected by asbestos and perforated to allow the escape of the products of combustion, substantially as set forth.

4. A hood or bonnet, in combination with an imperforate coil arranged below the same, burners which heat said coil, a fastening-strap for securing said hood to said coil, and a perforated rest or block arranged between the two latter parts, substantially as set forth.

WALTER M. BROWN.

lVituesses:

JULIUS F. HARRIS, WM. N. FOLAND. 

